990214474 has 4 divisors (see below), whose sum is σ = 1485321714. Its totient is φ = 495107236.

The previous prime is 990214441. The next prime is 990214501. The reversal of 990214474 is 474412099.

990214474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 989417025 + 797449 = 31455^2 + 893^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247553617 + ... + 247553620.

Almost surely, 2^990214474 is an apocalyptic number.

990214474 is a deficient number, since it is larger than the sum of its proper divisors (495107240).

990214474 is a wasteful number, since it uses less digits than its factorization.

990214474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495107239.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 990214474 is about 31467.6734761247. The cubic root of 990214474 is about 996.7274601655.

The spelling of 990214474 in words is "nine hundred ninety million, two hundred fourteen thousand, four hundred seventy-four".